Laptop & hifi

Wisey! · 07-01-2008, 05:54 PM

Just wondering if anyone has had any experience with laptops and hifi? When I plug my laptop into my amp I get a consiberable buzzing noise. This also happends with my friends two laptops and used to happen with my old laptop. However when I unplug my laptop from the mains the buzzing stops completely. I've told that this is a "Mains hum loop". Does anyone know a way to solve this? Other than takeing the earth of the laptop or amp.

Thanks in advance!
Wisey

**magnethead** · 07-01-2008, 08:36 PM

turn your gain down on the amp, as well as on the computer. a high gain can create all kinds of annoying buzzing. A good rule of thumb is set the amp to between 1/2 and 3/4 way, same with the main volume out in windows sound controller (or equiv), and use the amps volume knob. lower gains if needed, lowering amp first.

Wisey! · 07-02-2008, 02:50 AM

Okay, forgive me for being stupid, but I don't understand what you mean by gain. Unless it's internal, this babe: http://www.danny.mcnulty.btinternet.co.uk/sug1.jpg (not my acctual amp, mines beige where this is silver) dosn't have a Gain control. I've only ever seen gain controls on guitar amps and the like.

Thanks!

07-01-2008, 05:54 PM	#1 (permalink)
Wisey! Registered User Join Date: Aug 2007 Location: England Posts: 86 OS: Windows Vista Home Edition My System	Laptop & hifi Just wondering if anyone has had any experience with laptops and hifi? When I plug my laptop into my amp I get a consiberable buzzing noise. This also happends with my friends two laptops and used to happen with my old laptop. However when I unplug my laptop from the mains the buzzing stops completely. I've told that this is a "Mains hum loop". Does anyone know a way to solve this? Other than takeing the earth of the laptop or amp. Thanks in advance! Wisey

07-01-2008, 08:36 PM	#2 (permalink)
magnethead Registered User Join Date: Mar 2006 Location: Texas, USA Posts: 3,570 OS: Vista ultimate 32bit My System Blog Entries: 3	Re: Laptop & hifi turn your gain down on the amp, as well as on the computer. a high gain can create all kinds of annoying buzzing. A good rule of thumb is set the amp to between 1/2 and 3/4 way, same with the main volume out in windows sound controller (or equiv), and use the amps volume knob. lower gains if needed, lowering amp first. __________________ For proper support: what are you running? graphics, cpu, m/board, ram, PSU brand wattage PCI-E requires 26 amps at 12 volts. That's a 650W PSU. Power Supply Info and Selection . Info on thermal compounds & application . TEST PSU USING MULTI-METER . Bench Testing Your System

07-02-2008, 02:50 AM	#3 (permalink)
Wisey! Registered User Join Date: Aug 2007 Location: England Posts: 86 OS: Windows Vista Home Edition My System	Re: Laptop & hifi Okay, forgive me for being stupid, but I don't understand what you mean by gain. Unless it's internal, this babe: http://www.danny.mcnulty.btinternet.co.uk/sug1.jpg (not my acctual amp, mines beige where this is silver) dosn't have a Gain control. I've only ever seen gain controls on guitar amps and the like. Thanks!